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    <title>Geolocation example</title>
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        <a class="navbar-brand" href="./"><img src="./resources/logo-70x70.png">&nbsp;OpenLayers 3 Examples</a>
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      <div class="row-fluid">
  <div class="span12">
    <div id="map" class="map"></div>
    <div class="span4 pull-right">
      <div id="info" class="alert alert-danger" style="display: none;"></div>
    </div>
    <label class="checkbox" for="track">
      <input id="track" type="checkbox"/>track position
    </label>
    <p>position accuracy : <code id="accuracy"></code></p>
    <p>altitude : <code id="altitude"></code></p>
    <p>altitude accuracy : <code id="altitudeAccuracy"></code></p>
    <p>heading : <code id="heading"></code></p>
    <p>speed : <code id="speed"></code></p>
  </div>
</div>


      <div class="row-fluid">
        <div class="span12">
          <h4 id="title">Geolocation example</h4>
          <p id="shortdesc">Example of a geolocation map.</p>
          <div id="docs"><p>Example of a geolocation map.</p>
</div>
          <div id="tags">geolocation, openstreetmap</div>
          <div id="api-links">Related API documentation: <ul class="inline"><li><a href="../apidoc/ol.Feature.html" title="API documentation for ol.Feature">ol.Feature</a></li>,<li><a href="../apidoc/ol.Geolocation.html" title="API documentation for ol.Geolocation">ol.Geolocation</a></li>,<li><a href="../apidoc/ol.Map.html" title="API documentation for ol.Map">ol.Map</a></li>,<li><a href="../apidoc/ol.View.html" title="API documentation for ol.View">ol.View</a></li>,<li><a href="../apidoc/ol.control.html" title="API documentation for ol.control">ol.control</a></li>,<li><a href="../apidoc/ol.geom.Point.html" title="API documentation for ol.geom.Point">ol.geom.Point</a></li>,<li><a href="../apidoc/ol.layer.Tile.html" title="API documentation for ol.layer.Tile">ol.layer.Tile</a></li>,<li><a href="../apidoc/ol.layer.Vector.html" title="API documentation for ol.layer.Vector">ol.layer.Vector</a></li>,<li><a href="../apidoc/ol.source.OSM.html" title="API documentation for ol.source.OSM">ol.source.OSM</a></li>,<li><a href="../apidoc/ol.source.Vector.html" title="API documentation for ol.source.Vector">ol.source.Vector</a></li>,<li><a href="../apidoc/ol.style.Circle.html" title="API documentation for ol.style.Circle">ol.style.Circle</a></li>,<li><a href="../apidoc/ol.style.Fill.html" title="API documentation for ol.style.Fill">ol.style.Fill</a></li>,<li><a href="../apidoc/ol.style.Stroke.html" title="API documentation for ol.style.Stroke">ol.style.Stroke</a></li>,<li><a href="../apidoc/ol.style.Style.html" title="API documentation for ol.style.Style">ol.style.Style</a></li></ul></div>
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          <a id="copy-button"><i class="fa fa-clipboard"></i> Copy</a>
          <a id="jsfiddle-button"><i class="fa fa-jsfiddle"></i> Edit</a>
        </div>
        <form method="POST" id="jsfiddle-form" target="_blank" action="http://jsfiddle.net/api/post/jquery/1.11.0/">
          <textarea class="hidden" name="js">var view &#x3D; new ol.View({
  center: [0, 0],
  zoom: 2
});

var map &#x3D; new ol.Map({
  layers: [
    new ol.layer.Tile({
      source: new ol.source.OSM()
    })
  ],
  target: &#x27;map&#x27;,
  controls: ol.control.defaults({
    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
      collapsible: false
    })
  }),
  view: view
});

var geolocation &#x3D; new ol.Geolocation({
  projection: view.getProjection()
});

function el(id) {
  return document.getElementById(id);
}

el(&#x27;track&#x27;).addEventListener(&#x27;change&#x27;, function() {
  geolocation.setTracking(this.checked);
});

// update the HTML page when the position changes.
geolocation.on(&#x27;change&#x27;, function() {
  el(&#x27;accuracy&#x27;).innerText &#x3D; geolocation.getAccuracy() + &#x27; [m]&#x27;;
  el(&#x27;altitude&#x27;).innerText &#x3D; geolocation.getAltitude() + &#x27; [m]&#x27;;
  el(&#x27;altitudeAccuracy&#x27;).innerText &#x3D; geolocation.getAltitudeAccuracy() + &#x27; [m]&#x27;;
  el(&#x27;heading&#x27;).innerText &#x3D; geolocation.getHeading() + &#x27; [rad]&#x27;;
  el(&#x27;speed&#x27;).innerText &#x3D; geolocation.getSpeed() + &#x27; [m/s]&#x27;;
});

// handle geolocation error.
geolocation.on(&#x27;error&#x27;, function(error) {
  var info &#x3D; document.getElementById(&#x27;info&#x27;);
  info.innerHTML &#x3D; error.message;
  info.style.display &#x3D; &#x27;&#x27;;
});

var accuracyFeature &#x3D; new ol.Feature();
geolocation.on(&#x27;change:accuracyGeometry&#x27;, function() {
  accuracyFeature.setGeometry(geolocation.getAccuracyGeometry());
});

var positionFeature &#x3D; new ol.Feature();
positionFeature.setStyle(new ol.style.Style({
  image: new ol.style.Circle({
    radius: 6,
    fill: new ol.style.Fill({
      color: &#x27;#3399CC&#x27;
    }),
    stroke: new ol.style.Stroke({
      color: &#x27;#fff&#x27;,
      width: 2
    })
  })
}));

geolocation.on(&#x27;change:position&#x27;, function() {
  var coordinates &#x3D; geolocation.getPosition();
  positionFeature.setGeometry(coordinates ?
      new ol.geom.Point(coordinates) : null);
});

var featuresOverlay &#x3D; new ol.layer.Vector({
  map: map,
  source: new ol.source.Vector({
    features: [accuracyFeature, positionFeature]
  })
});
</textarea>
          <textarea class="hidden" name="css"></textarea>
          <textarea class="hidden" name="html">&lt;div class&#x3D;&quot;row-fluid&quot;&gt;
  &lt;div class&#x3D;&quot;span12&quot;&gt;
    &lt;div id&#x3D;&quot;map&quot; class&#x3D;&quot;map&quot;&gt;&lt;/div&gt;
    &lt;div class&#x3D;&quot;span4 pull-right&quot;&gt;
      &lt;div id&#x3D;&quot;info&quot; class&#x3D;&quot;alert alert-danger&quot; style&#x3D;&quot;display: none;&quot;&gt;&lt;/div&gt;
    &lt;/div&gt;
    &lt;label class&#x3D;&quot;checkbox&quot; for&#x3D;&quot;track&quot;&gt;
      &lt;input id&#x3D;&quot;track&quot; type&#x3D;&quot;checkbox&quot;/&gt;track position
    &lt;/label&gt;
    &lt;p&gt;position accuracy : &lt;code id&#x3D;&quot;accuracy&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;altitude : &lt;code id&#x3D;&quot;altitude&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;altitude accuracy : &lt;code id&#x3D;&quot;altitudeAccuracy&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;heading : &lt;code id&#x3D;&quot;heading&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;speed : &lt;code id&#x3D;&quot;speed&quot;&gt;&lt;/code&gt;&lt;/p&gt;
  &lt;/div&gt;
&lt;/div&gt;
</textarea>
          <input type="hidden" name="wrap" value="l">
          <input type="hidden" name="resources" value="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css,https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js,http://openlayers.org/en/v3.11.1/css/ol.css,http://openlayers.org/en/v3.11.1/build/ol.js">
        </form>
        <pre><code id="example-source" class="language-markup">&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;Geolocation example&lt;/title&gt;
&lt;script src="https://code.jquery.com/jquery-1.11.2.min.js"&gt;&lt;/script&gt;
&lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"&gt;
&lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"&gt;&lt;/script&gt;
&lt;link rel="stylesheet" href="http://openlayers.org/en/v3.11.1/css/ol.css" type="text/css"&gt;
&lt;script src="http://openlayers.org/en/v3.11.1/build/ol.js"&gt;&lt;/script&gt;

&lt;/head&gt;
&lt;body&gt;
&lt;div class="container-fluid"&gt;

&lt;div class&#x3D;&quot;row-fluid&quot;&gt;
  &lt;div class&#x3D;&quot;span12&quot;&gt;
    &lt;div id&#x3D;&quot;map&quot; class&#x3D;&quot;map&quot;&gt;&lt;/div&gt;
    &lt;div class&#x3D;&quot;span4 pull-right&quot;&gt;
      &lt;div id&#x3D;&quot;info&quot; class&#x3D;&quot;alert alert-danger&quot; style&#x3D;&quot;display: none;&quot;&gt;&lt;/div&gt;
    &lt;/div&gt;
    &lt;label class&#x3D;&quot;checkbox&quot; for&#x3D;&quot;track&quot;&gt;
      &lt;input id&#x3D;&quot;track&quot; type&#x3D;&quot;checkbox&quot;/&gt;track position
    &lt;/label&gt;
    &lt;p&gt;position accuracy : &lt;code id&#x3D;&quot;accuracy&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;altitude : &lt;code id&#x3D;&quot;altitude&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;altitude accuracy : &lt;code id&#x3D;&quot;altitudeAccuracy&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;heading : &lt;code id&#x3D;&quot;heading&quot;&gt;&lt;/code&gt;&lt;/p&gt;
    &lt;p&gt;speed : &lt;code id&#x3D;&quot;speed&quot;&gt;&lt;/code&gt;&lt;/p&gt;
  &lt;/div&gt;
&lt;/div&gt;

&lt;/div&gt;
&lt;script&gt;
var view &#x3D; new ol.View({
  center: [0, 0],
  zoom: 2
});

var map &#x3D; new ol.Map({
  layers: [
    new ol.layer.Tile({
      source: new ol.source.OSM()
    })
  ],
  target: &#x27;map&#x27;,
  controls: ol.control.defaults({
    attributionOptions: /** @type {olx.control.AttributionOptions} */ ({
      collapsible: false
    })
  }),
  view: view
});

var geolocation &#x3D; new ol.Geolocation({
  projection: view.getProjection()
});

function el(id) {
  return document.getElementById(id);
}

el(&#x27;track&#x27;).addEventListener(&#x27;change&#x27;, function() {
  geolocation.setTracking(this.checked);
});

// update the HTML page when the position changes.
geolocation.on(&#x27;change&#x27;, function() {
  el(&#x27;accuracy&#x27;).innerText &#x3D; geolocation.getAccuracy() + &#x27; [m]&#x27;;
  el(&#x27;altitude&#x27;).innerText &#x3D; geolocation.getAltitude() + &#x27; [m]&#x27;;
  el(&#x27;altitudeAccuracy&#x27;).innerText &#x3D; geolocation.getAltitudeAccuracy() + &#x27; [m]&#x27;;
  el(&#x27;heading&#x27;).innerText &#x3D; geolocation.getHeading() + &#x27; [rad]&#x27;;
  el(&#x27;speed&#x27;).innerText &#x3D; geolocation.getSpeed() + &#x27; [m/s]&#x27;;
});

// handle geolocation error.
geolocation.on(&#x27;error&#x27;, function(error) {
  var info &#x3D; document.getElementById(&#x27;info&#x27;);
  info.innerHTML &#x3D; error.message;
  info.style.display &#x3D; &#x27;&#x27;;
});

var accuracyFeature &#x3D; new ol.Feature();
geolocation.on(&#x27;change:accuracyGeometry&#x27;, function() {
  accuracyFeature.setGeometry(geolocation.getAccuracyGeometry());
});

var positionFeature &#x3D; new ol.Feature();
positionFeature.setStyle(new ol.style.Style({
  image: new ol.style.Circle({
    radius: 6,
    fill: new ol.style.Fill({
      color: &#x27;#3399CC&#x27;
    }),
    stroke: new ol.style.Stroke({
      color: &#x27;#fff&#x27;,
      width: 2
    })
  })
}));

geolocation.on(&#x27;change:position&#x27;, function() {
  var coordinates &#x3D; geolocation.getPosition();
  positionFeature.setGeometry(coordinates ?
      new ol.geom.Point(coordinates) : null);
});

var featuresOverlay &#x3D; new ol.layer.Vector({
  map: map,
  source: new ol.source.Vector({
    features: [accuracyFeature, positionFeature]
  })
});

&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;</code></pre>
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    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
    <script src="./resources/common.js"></script>
    <script src="./resources/prism/prism.min.js"></script>
    <script src="loader.js?id=geolocation"></script>

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</html>
